Heel-scouring machine



R. L.-GREENLE[\F HEEL SCOURING MACHINE.

'APPLICATION' FILED JUNE 17, 1918.

1,35 1 ,290, Patented Aug. 31, 1920.

2 SHEETS-SHEET l- R. L. GREENLEAF.

HEEL SCOURiNG MACHINE APPLICATION FILED JUNE 17, 1918.

1,351,290. PatentedAug. 31,1920. 7

2 SHEETS-SHEET 2- avwwptoz A rfiu q, Mama s being removed;

UNITED A 5 EU 'ERT L. GREENLEAF, or cAMB aIneE, ivressncriusnrr's. I I

v Application filed June 17,

To aZZ'whom it may concern:

Be it 'known that I, RUPERT L.- GREEN- LEAF, a citizen of the UnitedStates, residing at Cambridge, in the countyof Somerset and State ofMassachusetts, haveinvented certain new and useful Improvements inHeel-Securing Machines, of which the following is a specification. r

My invention relates to machines for scouring the breasts of shoe heelsand its object is to provide a simple and easily operated machine bywhich all heels will be scoured alike, no feather edge will be lefton'the heel, and the operator may finish the heel without moving fromhis position. Such a machine is illustrated in the accompanying drawingsand will be hereinafter fully described, the invention residing incertain novel features which will be 'particularly pointed out in theclaims.

In the drawings,

Figure 1 is a side elevation of a machine embodying the invention;

Fig. 2 is a plan view with parts in horizontal section;

Fig. 3 is a front elevation, the form plates Fig. 41 is a detailperspective view of a form plate and the plates by which the abradingmembers are secured thereto.

In carrying out the invention, I employ a substantialvv frame orstandard 1 having its upper portion bifurcated, as shown at 2, andprovided with bearings 3 for a drivingshaft 4. Fast and loose pulleys 5and 6 are fitted on the driving shaft between the bearings 3 and, on thefront of said shaft is a crank disk 7 On the front side of the frame aare projections 8 constituting guides for a reciprocatory carrier rod 9,and a link or pitman 10 has one end pivoted to saidrod and its oppositeendpivoted eccentrically to the crank disk, as shown most clearly inFig. 1.

Secured to and'projecting forwardly from the carrier rod 9, aresupporting arms 11 having their front ends offset, as at 12,-

whereby the polishing or scouring instrumentality will be properlydisposed for convenient and successful operation. The scouring orpolishing tool comprises a form plate 13, a cushioning cover or pad 14,abrading members 15, and clamping plates. 16. The form plate is arectangular metal blank curved or otherwise shaped transversely, asindicated. at 17, so that it will conform to nnnL-sconnmsiyracnmn.

c s ec fieantn (if teaeiseaea. Patented Aug'31,

1918. SerialfNo. 240,405.

f e-f tm;QE EJJ the shape of the heelbreasaitbeing ai' iii tentiontoprovide a plurality of formpl ates which may be used interchangeably.1 The form plate is covered with felt "or other yieldable material toprovide. the cushion or pad Hand the abrading membersl5, which arepreferably strips of emery" paper, are drawn smooth'over the'pad. Theclamping plates or strips 16 ofmetal or other rigid material are placedover the edges of the" abrading members against the back of the formplate and secured in placeby screws orbolts 18 and 19, the screwsl9 alsosecur ing the device to the offset ends 12 of the supporting arms 11.

member is finer than the lower member.

Below the scouring tool, a funnel '20 is provided, said funnel leadingto a suction device so that the dust arising fromthe op- The upperabradingy eration of the machine will be carried off in,

a well-known manner. e I

The operation of the machine will be readily understood. The operatorstands in front ofthe machine and holds the shoe against the scouringtool as indicated inv Fig. 2 and the tool reciproc'atesvertically a,smooth surface thereon. merely holds the heel against the tool and tofinish the'heel simply lifts it to the higher abrading member.

In scouring machines now generally the work is done by wheels whichtravel constantly in one direction, and consequently, form a featheredge or bur on one .side so that the heel must be reversed and appliedto a second wheel before it is finished. In my machine, the tool movesin both directions across the heel and no bur used,

is formed, the operator being enabled to finish the heel without leavinghis position. 7 It is not necessary to mold the abrading cloth as it maybe cut in lengths from the supply roll and placed directly against the,pad. The form plates will have the same curve as that originally giventheheel and may be easily and quickly interchanged. 7

Having thus described myinvention, what is claimed as newis:

.. 1. Means for securing the breasts of shoe,

heels comprising supporting arms carrying a form plate of curved crosssectlon and of approxlmately uniform thickness 'throughout its extent,.ayieldable cover over the front face of the form plate, an abrading stripfitting over the cover with itslongi porting arms.

tudinal edges against the back of the form plate clamping plates 'fittedagainst the abrading strip-atthe back of the 1 formplate and extendinglongitudinally of the form plate, means for securing one clamping plateand the adjacent side edges of the cover and of. the abrading strip tothe rfo'rmplate, and means for securing the other clamping plate and theadjacent side edge ofthe cover and of the abrading strip to the formplate and t0 the ends of thesupporting arms, thefirst mentioned clampingplate and .the parts held thereby being entirelyfree of the sup- 2. 71VeansifOr scouring the breasts of shoe heels comprising avrelativelyzthin metallic vplate having; its outervface straightinlongiplate and-against the back of-the-tsame a support andxmeans forsecuring the side edges of the abrading strip to the back of the formplate, and one-0f said side edge securing means also securingathelformplate adjacent one side 5 edge to :the, support the opposite side edge'of the .forni plate being free.

Intestimonyvthereofl aflix nl y signatn-re.

RUPERT L. GREENLEAF. j L. .S,

